Gustaf m



(No Model.)

' G. M. ANDERSSON.

I GENTRIFUGAL CREAM SEPARATOR.

No. 522,280. Patented July 3, 1894,

jg: F

wmesea UNITED STATES FFICE.

PATENT GUSTAF M. ANDEBSSON, or NEWARK, NEW JERSEY, ASS'reNoR To THE UNITED STATES BUTTER EXTRACTOR COMPANY, OF SAME PLACE.

. CENTRIFUGAL CREAM-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 522,280, dated July 3, 1894' Application filed are... 5, 1894. Serial No. 495,794. (No model.)

cation, reference being had therein to-the ac-' companyin g drawings,which form part hereof.

My invention relates to centrifugal cream separating machines and particularly to outlets for the creamin such machines.

It has for its object to provide an adj ust-" able cream out-let adapted to beshit'ted nearer to or farther from the center of thebowl of the machine, so asto vary the density of the cream discharged from the separator, and it consists of the devices hereinafter described and claimed in the claims at the end of this specification.

Figure l is a plan of the cover or upper wall. of the separator. Fig. 2 is a vertical section on the lines 2'2 Fig. 1. Fig. 3 is av top view of the rotatable plug; and Fig. 4 is a like view of the part of the cover or upper wall'of the separator containing the screwthreaded orifice with the plug removed.

Like letters indicate corresponding parts in the different figures.

The drawings show the preferred form of my improvement, which I shall now describe.

A is a screw-threaded plug with its screw. threads cut away on one side of the plug so as to form a trough or cut 0 through the threads, extending from the bottom to the .top of the plug. This plug is mounted in a screw-threaded orifice in a wall of the separator bowl. As shown in the drawings this orifice B iS placed in the cover or upper wall E, although it could, if desired, be mounted in other walls of the bowl. This orifice B has its screw threads cut away on one side ofv the orifice, so as to form a trough or cut G,

through said screw threads, extending from the bottom to the top of said orifice. As shown in the drawings this trough G is preferably made larger than the trough C in the plug.

The plug A is made So as to be capable of rotating on its axis. By such rotation the trough O can be adjusted to difierent positions as at C, O, C", Fig. 1,the two latter positions being indicated by dotted lines. This rotation of the plug can be accomplished in any suitable manner, as by means of a screw driver. As the trough O is moved to correspond with different parts of the trough G it provides an adjustable outlet for the cream My device furnishes a simple, efficient and readily adjustable means for varying the density of the cream discharged from a separator bowl without the disadvantage of having the means for the discharge of the cream project into the bowl itself.

' The drawings and the above description represent the preferred form of my device,

but this may be varied in its details without departing from my invention.

What I claim as new, and desire to secure by Letters Patent, is I 1. In a rotatable cream separator, a rotatable Screw plug having a portion of its screw thread cut away to form a trough extending along its length and mounted in a screwthreaded orifice in the walls of the bowl, the latter having a portion of its screw threads cut away to form a trough extending along the length of the orifice, whereby by the rotation of the screw plug the trough of the plug will correspond with different parts of the trough of the orifice, Substantially as set forth. I

2. In a centrifugal cream separator, a, rotatable screw plug having a portion of its screw threads cut away to form a trough extending along its length and mounted in a screw threaded orifice in the walls of the bowl, the latter having a portion of its screw moved nearer to or farther from the center threads cut away to forma trough extending of the bowl, substantially as set forth. along the length of the orifice wider than the N. trough 1n the plug whereby by the trough of GUSTAF M ANDERSSO 5 the plug corresponding with (lifierent parts Witnesses:

of the trough of the orifice the opening for ROBERT E. MCKEE,

the escape of cream from the bowl will be ASHER MAYER. 

